Rename project from system-stats-daemon to systant

- Updated all module names from SystemStatsDaemon to Systant
- Renamed application config from :system_stats_daemon to :systant
- Updated service files and documentation
- Release binary now at _build/prod/rel/systant/bin/systant

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/systant.ex

@@ -1,6 +1,6 @@
-defmodule SystemStatsDaemon do
+defmodule Systant do
   @moduledoc """
-  Documentation for `SystemStatsDaemon`.
+  Documentation for `Systant`.
   """
 
   @doc """
@@ -8,7 +8,7 @@ defmodule SystemStatsDaemon do
 
   ## Examples
 
-      iex> SystemStatsDaemon.hello()
+      iex> Systant.hello()
       :world
 
   """

lib/systant/application.ex

@@ -1,4 +1,4 @@
-defmodule SystemStatsDaemon.Application do
+defmodule Systant.Application do
   # See https://hexdocs.pm/elixir/Application.html
   # for more information on OTP Applications
   @moduledoc false
@@ -8,12 +8,12 @@ defmodule SystemStatsDaemon.Application do
   @impl true
   def start(_type, _args) do
     children = [
-      {SystemStatsDaemon.MqttClient, []}
+      {Systant.MqttClient, []}
     ]
 
     # See https://hexdocs.pm/elixir/Supervisor.html
     # for other strategies and supported options
-    opts = [strategy: :one_for_one, name: SystemStatsDaemon.Supervisor]
+    opts = [strategy: :one_for_one, name: Systant.Supervisor]
     Supervisor.start_link(children, opts)
   end
 end

lib/systant/mqtt_client.ex

@@ -1,4 +1,4 @@
-defmodule SystemStatsDaemon.MqttClient do
+defmodule Systant.MqttClient do
   use GenServer
   require Logger
 
@@ -11,7 +11,7 @@ defmodule SystemStatsDaemon.MqttClient do
   end
 
   def init(_opts) do
-    config = Application.get_env(:system_stats_daemon, __MODULE__)
+    config = Application.get_env(:systant, __MODULE__)
     Logger.info("Starting MQTT client with config: #{inspect(config)}")
     
     # Use a unique client ID to avoid conflicts
@@ -32,7 +32,7 @@ defmodule SystemStatsDaemon.MqttClient do
         
         # Send immediate hello message
         hello_msg = %{
-          message: "Hello - system_stats_daemon started",
+          message: "Hello - systant started",
           timestamp: DateTime.utc_now() |> DateTime.to_iso8601(),
           hostname: get_hostname()
         }
@@ -64,7 +64,7 @@ defmodule SystemStatsDaemon.MqttClient do
 
   defp publish_stats(config, client_id) do
     stats = %{
-      message: "Hello from system_stats_daemon",
+      message: "Hello from systant",
       timestamp: DateTime.utc_now() |> DateTime.to_iso8601(),
       hostname: get_hostname()
     }